.search-index {
    position: fixed;
    left: 0;
    top: 0;
    display: flex;
    width: 100%;
    height: 44px;
    padding-left: 12px;
    box-sizing: border-box;
    align-items: center;
    z-index: 20;
}

.search-index .search {
    display: flex;
    align-items: center;
    flex: 1;
    height: 28px;
    padding: 2px 5px;
    border-radius: 16px;
    box-sizing: border-box;
    background-color: #fff;
}

.search-index .search span {
    position: relative;
    padding-left: 35px;
    line-height: 18px;
    font-size: 15px;
    color: #666;
}

.search-index .search span::after {
    content: "";
    display: block;
    width: 14px;
    height: 14px;
    position: absolute;
    left: 10px;
    top: 2px;
    background: url(../images/sprite.png) no-repeat 0px 0px;
    background-size: 21px auto;
}

.search-index .login {
    /* 内部进行 flex 布局 */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 51px;
    height: 44px;
    padding-right: 4px;
}

.search-index .login::after {
    content: "";
    display: block;
    width: 22px;
    height: 22px;
    background: url(../images/sprite.png) no-repeat 0 -36px;
    background-size: 21px auto;
    order: -1;
}

.search-index .login span {
    font-size: 12px;
    color: #fff;
    line-height: 12px;
}

.subnav-entry {
    display: flex;
    margin: 0 12px 12px;
    flex-wrap: wrap;
}
.subnav-entry li {
    width: 20%;
}
.subnav-entry li a {
    display: flex;
    width: 100%;
    font-size: 12px;
    line-height: 12px;
    flex-direction: column;
    align-items: center;
}
.subnav-entry li a i {
    width: 28px;
    height: 28px;
    margin: 10px 0 5px;
    background: url(../images/subnav-bg.png) no-repeat 6px -134px;
    background-size: 24px auto;
}
.subnav-entry li:nth-child(2) a i {
    background: url(../images/subnav-bg.png) no-repeat 5px 4px;
    background-size: 24px auto;
}
.subnav-entry li:nth-child(3) a i {
    background: url(../images/subnav-bg.png) no-repeat 5px -20px;
    background-size: 24px auto;
}
.subnav-entry li:nth-child(4) a i {
    background: url(../images/subnav-bg.png) no-repeat 5px -50px;
    background-size: 24px auto;
}
.subnav-entry li:nth-child(5) a i {
    background: url(../images/subnav-bg.png) no-repeat 5px -78px;
    background-size: 24px auto;
}
.subnav-entry li:nth-child(6) a i {
    background: url(../images/subnav-bg.png) no-repeat 5px -106px;
    background-size: 24px auto;
}
.subnav-entry li:nth-child(7) a i {
    background: url(../images/subnav-bg.png) no-repeat 5px -165px;
    background-size: 24px auto;
}
.subnav-entry li:nth-child(8) a i {
    background: url(../images/subnav-bg.png) no-repeat 5px -193px;
    background-size: 24px auto;
}
.subnav-entry li:nth-child(9) a i {
    background: url(../images/subnav-bg.png) no-repeat 5px -218px;
    background-size: 24px auto;
}
.subnav-entry li:nth-child(10) a i {
    background: url(../images/subnav-bg.png) no-repeat 5px -242px;
    background-size: 24px auto;
}